help me, please

I have known my boyfriend for 2 years. we were good friends and then best friends. i started to fall for him, very deeply. well on December 25th of 2017, we admitted to each other that we have feelings for each other. then on the 26th he asked me to be his girlfriend. I said yes! he makes me so happy. I have major anxiety, major depression, and mild post traumatic stress disorder. I come from a family who doesn't really care to show me affection, they will others but I guess you could  say I'm the runt no one wants. almost a year ago, I stood up to my ex boyfriend who was very mentally, emotionally, and physically abusive.  but guys, now, I finally feel loved. I feel like he actually tries and he actually loves me. but I have trust issues and much more. if his mood changes, even just a tiny bit, I feel like I pissed him off. I guess its the trauma I went through with the abusive relationship plus to add I was abused by my mum for a little bit. but I keep doubting myself. like I doubt that I make him happy or that I'm doing things right. my family is chill with him. my cousin and one of my aunts likes him. my mum likes him. my 8 month old sister/daughter(I help raise her) loves him, and he loves her. he calls her and I both his babies or his girls. its so cute, I die every time. he is amazing. I also feel horrible because every time a girl messages him, I can't help but look or get self conscious, or even sometimes jelly. I trust him, so much. but I don't trust the girls he talks to. I know them. and I don't like them, but they don't like me either. so what if they try something to get at me. idk. so many things pop up in my head. he is helping me lose weight because I am struggling with that. he had put $25 worth of had in my mum's vehicle because we didn't have the money and we were almost out.

my family also isn't too happy about my valentines day gift, which was a promise ring. he promised me he loved me and that he wanted something with me forever. he didn't promise anything crazy. BUT EVEN MY CSS(someone who helps me with my mental health) DOESN'T LIKE THE FACT HE GOT ME A PROMISE RING. she told me "girlll, when he breaks things off, don't come crying to me. oh lordt no. I don't wanna hear about it." like tf you mean. but its whatever... I love him and I just wanna be the best I can for him and if y'all have some ideas on how to help me with me being so self conscious, I'd love to hear it!